Administrative distance

[2] The administrative distance (AD) value is assigned by the router on a per-protocol basis.

[4] The router will usually compare administrative distances to determine which protocol has the lowest value.

[2] The following table lists the default administrative distances for various routing protocols used on Cisco routers.

[3] The following table lists the default administrative distances for various routing protocols used on Juniper routers.

The following table lists the default administrative distances used on Extreme VOSS / Fabric-Engine.

The following table lists the default administrative distances for various routing protocols used on Fortinet FortiGate routers.

Floating static routes are used to provide an alternate path when a primary link fails.

R1(config)# ip route 10.0.0.0 255.0.0.0 backupLink 1 254 In the event that two routing protocols are configured with the same administrative distance, the Cisco router will ignore the configured values and instead use the default values.